util: Silent potential loss of precision warnings.

Also ensure multiplication doesn't happen for negative numbers.
2010-01-01 19:39:09 +00:00
parent 9595b59247
commit c852e960cc
1 changed files with 2 additions and 3 deletions
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -585,13 +585,12 @@ do {                                     \

 static INLINE uint32_t util_unsigned_fixed(float value, unsigned frac_bits)
 {
-   value *= (1<<frac_bits);
-   return value < 0 ? 0 : value;
+   return value < 0 ? 0 : (uint32_t)(value * (1<<frac_bits));
 }

 static INLINE int32_t util_signed_fixed(float value, unsigned frac_bits)
 {
-   return value * (1<<frac_bits);
+   return (int32_t)(value * (1<<frac_bits));
 }